xref: /freebsd/sys/rpc/getnetconfig.c (revision f7c32ed617858bcd22f8d1b03199099d50125721)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5  * Authors: Doug Rabson <dfr@rabson.org>
6  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include "opt_inet6.h"
31 
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34 
35 #include <sys/param.h>
36 #include <sys/malloc.h>
37 #include <sys/systm.h>
38 
39 #include <rpc/types.h>
40 
41 /*
42  * For in-kernel use, we use a simple compiled-in configuration.
43  */
44 
45 static struct netconfig netconfigs[] = {
46 #ifdef INET6
47 	{
48 		.nc_netid =	"udp6",
49 		.nc_semantics =	NC_TPI_CLTS,
50 		.nc_flag =	NC_VISIBLE,
51 		.nc_protofmly =	"inet6",
52 		.nc_proto =	"udp",
53 	},
54 	{
55 		.nc_netid =	"tcp6",
56 		.nc_semantics =	NC_TPI_COTS_ORD,
57 		.nc_flag =	NC_VISIBLE,
58 		.nc_protofmly =	"inet6",
59 		.nc_proto =	"tcp",
60 	},
61 #endif
62 	{
63 		.nc_netid =	"udp",
64 		.nc_semantics =	NC_TPI_CLTS,
65 		.nc_flag =	NC_VISIBLE,
66 		.nc_protofmly =	"inet",
67 		.nc_proto =	"udp",
68 	},
69 	{
70 		.nc_netid =	"tcp",
71 		.nc_semantics =	NC_TPI_COTS_ORD,
72 		.nc_flag =	NC_VISIBLE,
73 		.nc_protofmly =	"inet",
74 		.nc_proto =	"tcp",
75 	},
76 	{
77 		.nc_netid =	"local",
78 		.nc_semantics =	NC_TPI_COTS_ORD,
79 		.nc_flag =	0,
80 		.nc_protofmly =	"loopback",
81 		.nc_proto =	"",
82 	},
83 	{
84 		.nc_netid =	NULL,
85 	}
86 };
87 
88 void *
89 setnetconfig(void)
90 {
91 	struct netconfig **nconfp;
92 
93 	nconfp = malloc(sizeof(struct netconfig *), M_RPC, M_WAITOK);
94 	*nconfp = netconfigs;
95 
96 	return ((void *) nconfp);
97 }
98 
99 struct netconfig *
100 getnetconfig(void *handle)
101 {
102 	struct netconfig **nconfp = (struct netconfig **) handle;
103 	struct netconfig *nconf;
104 
105 	nconf = *nconfp;
106 	if (nconf->nc_netid == NULL)
107 		return (NULL);
108 
109 	(*nconfp)++;
110 
111 	return (nconf);
112 }
113 
114 struct netconfig *
115 getnetconfigent(const char *netid)
116 {
117 	struct netconfig *nconf;
118 
119 	for (nconf = netconfigs; nconf->nc_netid; nconf++) {
120 		if (!strcmp(netid, nconf->nc_netid))
121 			return (nconf);
122 	}
123 
124 	return (NULL);
125 }
126 
127 void
128 freenetconfigent(struct netconfig *nconf)
129 {
130 
131 }
132 
133 int
134 endnetconfig(void * handle)
135 {
136 	struct netconfig **nconfp = (struct netconfig **) handle;
137 
138 	free(nconfp, M_RPC);
139 	return (0);
140 }
141